<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
                      "http://www.w3.org/TR/html4/strict.dtd"> 
<html> 
  <head> 
    <title>Contact Example</title> 
 
    <script type="text/javascript" charset="utf-8" src="phonegap.js"></script> 
    <script type="text/javascript" charset="utf-8"> 
 
    // Wait for PhoneGap to load 
    // 
    function onLoad() { 
        document.addEventListener("deviceready", onDeviceReady, false); 
    } 
 
    // PhoneGap is ready 
    // 
    function onDeviceReady() { 
        var paths = navigator.fileMgr.getRootPaths(); 
        var writer = new FileWriter(paths[0] + "write.txt"); 
        writer.onwrite = writeSuccess; 
        writer.write("some sample text"); 
        // The file is now 'some sample text' 
    } 
 
    function writeSuccess() { 
        console.log("Write has succeeded"); 
        var paths = navigator.fileMgr.getRootPaths(); 
        var writer = new FileWriter(paths[0] + "write.txt"); 
        writer.seek(4); 
        writer.truncate(writer.position); 
        // The file is now 'some' 
    } 
 
    function fail(evt) { 
        console.log(evt.target.error.code); 
    } 
 
    </script> 
  </head> 
  <body onload="onLoad()"> 
    <h1>Example</h1> 
    <p>Write File</p> 
  </body> 
</html> 
